stone; rock; jewel; precious stone; flint (in a lighter); (round) game piece
pillow; bolster; introduction (e.g. to a rakugo story); lead-in
flow (of a fluid or gas); stream; flow (of people, things); passage (of time); course (of events); (step-by-step) procedure; group of people who remain together after the end of an event
to gargle; to rinse (the mouth)